For next school year, the current principals of Brooklet Elementary, Sallie Zetterower Elementary and William James Middle School have each been assigned to lead a different one of those three schools, Superintendent of Schools Charles Wilson announced Friday. Effective July 1, Marlin Baker will become principal at Sallie Zetterower, Mike Yawn will move to Brooklet Elementary and Julie Mizell will lead WJMS. Currently, Baker is principal at Brooklet Elementary, Mizell at Sallie Z. and Yawn at Williams James. Wilson and the Bulloch County Board of Education are finalizing principal assignments in preparation for the annual renewal of administrator contracts in May.